Silencer for windows



July 16, 1935. D. K. MACLEOD 2,008,329

SILENCER FOR WINDOWS Filed Dec. 6, 1952 5 Sheets-Sheet 1 .KMACLEOD IN V EN TOR.

ATTORNEY July 16, 1935. D. K. MACLEOD SILENGER FOR WINDOWS 5 Sheets-Sheet 2 Filed Dec. 6, 1932 D.K. MHCLEOD INVENTOR.

ATTORNEY July 16, 1935. D, K MACLEOD 2,008,329

S ILENCER FOR WINDOWS Filed Dec. 6, 1932 5 Sheets-Sheet 3 D.K. Mncuzoo IN V EN TOR.

FI E} BY ATTORNEY July 16, 1935, K, MYACLEOD 2,008,329

S ILENCER FOR WINDOWS Filed D66. 6, 1932 5 Sheets-Sheet 4 D.K.MncLEo0 IN VEN TOR.

A TTORNEY July 16, 1935. D, K, MACLEOD 2,008,329

SILENCER F OR WINDOWS Filed Dec. 6, 1932 5 Sheets-Sheet 5 DK. MfiCLEOD IN VEN TOR.

ATTORNEY Patented July 16, 1935 aocssza SILENCER ronwmoows Donald K. Macleod, Youngstown, Ohio, assignor to The Truscon Steel Company, Youngstown, Ohio, a corporation of Michigan ApplicationDecember 6, 1932, Serial No. 545,936

4 Claims. 1 (01. 98-88) This invention relates to a window constructed as a unit and comprising a frame and hinged or slidable sashes functioning thereintogether with a silencer and ventilating opening.

I am aware that windows of the ordinary casement type have been constructed with a hopper vent. This type of window is primarily designed for ease of window cleaning and to prevent direct drafts in stormy weather, the latter being accomplished by closing the casement sashes and opening the hopper vent. Now, when these windows are installed in buildings which face noisy streets, the feature of the design which prevents drafts creates an extremely undesirable condition in the room by allowing street noise to enter, and the shape of the hopper vent causes a megaphone action which, in many instances, actually accentuates the street noise entering the room.

Now, it is possible to prevent a proportion of the street sounds from entering the opening provided for the hopper vent simply by reversing the hopper vent and swinging it outwards instead of inwards. However, this does not shut out sufficient of the outside sound and, in addition, .permits rain to enter directly into the room, so that such construction would not be practical,

These disadvantages are overcome in the present invention in that construction is set forth which includes the window frame with casement sashes hinged thereto and having a weather tight closing contact together with means for providing Ventilation and preventing sounds from passing through this ventilating opening. This ventilating opening is provided with means for drainage when open and when in a closed position provides a weather tight joint, thus providing a completely weather tight and sound proof window.

In my invention, I am using, in the window structure of the casement type, the hinged sash itself as a sound-excluding member, thus avoiding the necessity of making a separate attachment tothe window after the window is installed, such as has been necessary with all noise exclusion devices heretofore.

I am aware that casement windows known to the art are often provided with a hopper vent. Ordinarily a construction of this type provides a hinged panel usually located at alower portion of a winodw frame so that the panel turns upon its lower edge providing means for ventilating a room by swinging the panel inwardly into the room. When it is desired to close this ventilating passage the panel is swung upwardly and fastened. In my invention I haveprovided a shield which is positioned upon the outside of a window and which is secured by means of hinges at its lower edge. This shield is provided with means for adjusting and for closing the same. In order to prevent undesirable sounds from entering a room this shield is used in combina tion with a secondary shield which is preferably positioned in a vertical position. and underneath that portion of the window carrying the sashes. This secondaryshield extends downwardly below thewupper edge-of the shield. Extending downwardly into the room there is a reflector which is oppositely disposed from .the shield. The shield and reflector are provided with end portions thereby causing the air. entering through the ventilator and silencer to pass downwardly be tween the shield and the secondary shield and such sound waves as may be carried beyond this secondary shield come in contact with the reflector'and due to the curvature of this reflector are caused to be reflected out and prevented from entering the room. 3

The principal object of this invention, therefore, is to provide a window constructed as a unit comprising a frame and hinged sashes secured to said frame, together with means for intercepting the sound waves travelling toward or through the ventilating opening in order to prevent undesirable noises or sounds from' entering the room an'd at the same time allow for ventilation.

Another object of the invention is to provide a window constructed as a unit including means for reflecting intercepted waves in such a manner thatthe reflected waves will be directed toward and across the'planes of other oncoming waves.

Another object of the invention is to provide a windowconstructed as a unit including a lower vertically slidable sash together with a silencer and ventilatingopening as an integral part of said sash.

I Another object of the invention is to provide a 1 window constructed as a unit including a silencer and ventilating opening secured to a bottom portion of a window frame.

Another object of the invention is to provide a window constructed as a unit including a silencer and ventilating opening secured to an upper portion of a window frame.

Another object of the invention is to provide a window constructed as a unit including a silencer and ventilating opening, one part of said silencer and ventilating opening being attached to the window frame while the remaining part is attached to a slidable sash.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The sound from the streetwhich enters the ordinary open windows of office buildings, hotels, hospitals, schools and homes is often very an Iiam aware that it is not new to provide means for minimizing or reducing the volume ofsound entering the room through a ventilating opening. It is therefore not my intention to. claim broadly the means for preventing undesirable noises from entering the room. The development of the art, however, has not taught the construction of a window comprising aframe with sashes therein and means, as part of the window, for preventing undesirable noises from entering the 'ro'oml' In order to reduce the art to a practical basis it is necessary to so'construct and arrange this window including the silencer and ventilating opening to reduce it to a standard construction, all parts thereof being apart of a single window unit. 7 v 7 An invention relating to this particular device should not be limited to one construction; Therefore, in order'to show advantageous features, I have selected for illustration in the drawings, accompanying andforrning a part of the specification, modifications showing a practical construction but it understood that even these modifications do not lirrit me to such forms alone but are for the purpose of more clearly illustrating and teaching the fundamental object of embodying the entire structure in its various forms into a sin gle window unit The invention is illustrated in the accompanying drawings, whereinz- Figure l is a perspective view of a window unit comprising a frame and a pair of hinged sashes, together with a silencer and ventilator.

- Figure 2 is an enlarged cross section taken on line 2-2 of Figure 1.

' Figure 3'is an enlarged cross section taken. on line 3--3 of Figure l. V V

Figure 4 is a front elevationof the window frame with sashes, silencer, and ventilator secured therein.

Figure-5 is an enlarged cross section taken on line '55 of Figure 4 showing a modification in the manner of attaching the silencer and ventila tor.

Figure 6 is a cross section taken on line 6-6 of Figure 5.

Figure '7 is a fragmentary side elevation in cross section of the window frame with a modification of thesilencer and ventilator positioned therein.

' Figure 8 is a cross section'taken on line 8- 81 of Figure 7.

Figure 9 is a front elevation of the silencer and ventilator positioned in a modifiedform of the window frame. a

Figure 10 is an enlarged detail view of Figure 1.

Figure 11 is an enlarged detail View of Figure 10.

Figure 12 is a front elevation of the window frame with sashes, silencer, and ventilator installed therein.

Figure 13 is a sideelevation of the window frame with partsbroken away with sashes, si lencer, and ventilator installed therein. Figure 14 is an enlarged cross section taken on line M-l l of Figure 12. v T This device is constructed to reduce to a minimum the amount of sound entering a room through a window open to provide ventilation.

This is accomplished by a combination of sound interceptors which first reduce the amount or:

sound passing through the opening and then revarious figures of the drawings there is shown various combinations in reference to the arrange ment of the securing and positioning of the silencer and ventilator in relation to the window frame andsashes therein. 7

By referring to the drawings it will be seen 1 that there is shown a window frame I. In Figures l, 2, and 3 this frame I is shown constructed soas to carry hinged sashes 66. At the lower portion of this frame l thereis'provided a vantilator and silencer comprising a shield B hinged at its lower end by means of hinges l; This shield 8 is provided with a frame 8 which carries a glass 9. It will also be seen'that the shield 3 is positioned between a pair of end portions to. This shield 6 is provided with a manipulating arm it which is provided with a grip end [2. The outer end of this manipulating arm I l is pivoted to the'shield 6 by means of a pivot l3. -t will also be seen that there is provided ascoondary shield comprising a frame 22 and a glass 23, This secondary shield extends downwardly below the upper edge of the shield, 5 in order that any sound waves entering a vent passage formed by the opening of the shield 6, may strike this secondaryshieid and be refiected. Should any sound waves pass below this secondary shield the same will encounter a curved reflector comprising a glass 24, a frame 25, and end portions 26 and will be reflected back and prevented from entering the room. It is also pointed out that the secondary shield is positionedbetween the shield 6 and the reflector, and that the reflector glass and the shield are oppositely disposed.

By referring to Figure 2 it will be seen that the hingedsashes 59 are provided with contact will flanges 4H and 52, these contact flanges forming By referring to Figure 3 it will be seen that thelowerportion of the frame 8 comes into a weather tight contact with the frame I when in a closed position. It will also be seen that the lower portion of the shield 6 functions with a spring strip 3'? which is secured to the frame I at a point 48, and which prevents noise leakage between the lower edge of the shield e and outer extension of the frame l. It will also be seen that there is provided a plurality of drains 29 for the purpose of carrying off any moisture that may be brought into the ventilator and silencer at such times as the shield 5 may be in anopen position. When closed, however, a tight scaling joint is formed, as indicated by dotted line, where the frame 8 comes in contact with the frame I.

In the other figures of the drawings the f ame l is shown constructedlso as to carry a vertically slidable sash 2 and a lower vertically slidabie sash 3. The upper sash is provided with a glass Q and the lower sash is provided with a glass 5.

Figures l3 and 14 show a modification of the silencer and ventilator. This silencer and ventilator is secured to and underneath the-lower sash 3 and moves upwardly or downwardly when lowering or raising the lower sash 3. This silencer and ventilator also comprises a shield 6 hinged at its lower end by means of hinges I. In this modification of the silencer and ventilator the manipulating arm H is provided with a plurality of notches 1 14 in order to adjust the angle of the shield 6 when in an open position.

By referring to Figures 10, 11, and 14 a more detailed view of this manipulating arm II and connecting parts is shown. It will be seen that the manipulating arm il passes through a slot E in a frame portion [6. This manipulating arm l i is provided with a pivot ll in order to provide for a latching movement. In order to hold the manipulating arm H in an adjusted position there is provided a casing i8 carrying a compression spring is which normally exerts an outward pressure upon a pin 2i! which holds one of the notches id of the manipulating arm l against an edge at one end of the slot i5. It will also be seen that the frame portion Hi carries the secondary shield comprising the frame 22 and the glass It will be seen that this secondary sh eld extends downwardly in order that any sound waves entering above the shield 53 may strike this secondary shield and be reflected. However, any sound waves which may pass below this secondary shield will encounter the'curved reflector comp-rising the glass 24, the frame 25, and the end portions 26 and will be reflected back. It will again be seen by referring to the drawings that the shield 6 and this reflector are oppositely disposed, the shield 6 having an outside exposure while the reflector is extended inwardly into the room.

By referring to Figures 4, 5, and 6 it will be seen that a modification is shown in that the shield ii is secured at its bottom portion by means of the hinges l which are in turn secured at a point 27 of the frame It will also be seen that the reiiector and connecting parts are secured to the frame 2 at a point 28. In this modification the silencer and ventilator are positioned underneath the lower sash 3, this lower sash 3 forming a weather seal joint at a point 29 on an upper portion of the silencer and ventilator. The outer ends of the shield 6 are provided with a felt seal portion 3i for the purpose of absorbing sound and making a close contact either in an open or in a closed position.

By referring to Figures '7 and 8 it will be seen that there is shown a modification in that the reflector and connecting parts are secured to the 'rame i at a point 32. It will also be seen that the hinges l are secured to a frame portion 33 provided with a depended portion 34 in order to form a weather joint in relation to the frame i. It will also be seen that there is provided a weather strip 35 in order to form a weather sealed joint. Figure 8 shows, in dotted line, the position of the shield 6 when in a closed position. It will also be seen that the lower sash 3 slides in an opening 36 of the frame It will also be seen that the upper sash 2 forms a sliding contact with a recess 3?. It will also be seen that there is provided a felt strip 33 positioned at the outer ends of the shield 5 for the purpose of absorbing sound and also forming a close contact when in either an open or closed position.

By referring to Figure 9 it will be seen that there is shown a modification of the frame I which shows the same installed in an opening of a wall 39.

What I claim is:-

In a device of the class described, a window frame, window sashes maintained within said window frame, a plurality of drains in said frame, a transparent adjustable shield secured to the lower portion of the window frame, a manipulating arm secured to said transparent adjustable shield, a plurality of notches formed in said manipulating arm, a spring tensioned pin forming a contact with said manipulating arm for the purpose of holding said transparent adjustable shield in an adjusted position, a curved reflector secured to the lower portion of said window frame, a secondary shield positioned between said transparent adjustable shield and said reflector.

2. In a device of the class described in combination with a metal frame and hinged sashes within said frame, a transparent shield hinged at its lower edge to said metal frame in such a manner as to open outwardly from the outer side of the frame, means for holding said transparent shield in an open or closed position and for adjusting said transparent shield together with means for draining said metal frame when the transparent shield is in an open position and means for closing said drains when the above mentioned transparent shield is in a closed position, a transparent reflector secured to lower portion of said metal frame and positioned on the inside portion of the frame and extending into the room, said transparent shield and said reflector spaced apart and oppositely disposed, a transparent secondary shield underneath the window sashes in said frame and extending downwardly between said transparent shield and said transparent reflector and below the upper edges of said transparent shield and said reflector.

23. In a device of the class described in combination with a frame and hinged sashes within said frame, a shield hinged to said frame and opening outwardly from the outside of said frame, means for holding said shield in an open or closed position and for adjusting said shield together with means for draining said frame when said shield is in an open position and means for closing said drains when said shield is closed, a reflector secured to the lower portion of said frame on the inside portion of the frame and extending into the room, said shield and said reflector spaced apart and oppositely disposed, a secondary shield underneath the window sashes in said frame and extending downwardly between said shield and. said refiector' below the upper edges of said shield and said reflector, end portions enclosing said first mentioned shield and said reflector.

4. In a device of the class described comprising awindow frame, thecombination of outside swinging sashes'forming sound shield members together with a lower sound shield hinged at its lower edge in such a manner as to open outwardly from the outer side of the frame, a reflector secured to the lower portion of said frame and positioned on the inside portion of the frame and extending into the room, said shield and said reflector spaced apart and oppositely disposed, a secondary shield positioned underneath the window sashes in said frame and extending downwardly between said shield and said reflector below the upper edges of said shield and reflector, means for drainage when said first mentioned shield is in an open position and means for closing saiddrainage when said first mentioned shield is in a closed position.

DONALD K. MACLEOD. 

